package domain

import (
	"strings"
	"testing"
)

func TestNormalizeUsernameAndValidateUserInput(t *testing.T) {
	if got := NormalizeUsername("  Admin.User  "); got != "admin.user" {
		t.Fatalf("NormalizeUsername() = %q", got)
	}
	if err := ValidateUserInput(
		"admin.user",
		"strong-password",
		UserRoleAdmin,
	); err != nil {
		t.Fatalf("ValidateUserInput(valid) error = %v", err)
	}
	for name, input := range map[string]struct {
		username string
		password string
		role     UserRole
	}{
		"blank username": {" ", "password", UserRoleAdmin},
		"blank password": {"admin", "", UserRoleAdmin},
		"short password": {"admin", "tiny", UserRoleAdmin},
		"invalid password UTF-8": {
			"admin",
			string([]byte{0xff, 0xfe, 0xfd}),
			UserRoleAdmin,
		},
		"oversized password": {
			"admin",
			strings.Repeat("x", MaxPasswordBytes+1),
			UserRoleAdmin,
		},
		"invalid role": {"admin", "password", "AUDITOR"},
	} {
		t.Run(name, func(t *testing.T) {
			if err := ValidateUserInput(
				input.username,
				input.password,
				input.role,
			); err == nil {
				t.Fatal("ValidateUserInput() error = nil")
			}
		})
	}
}

func TestValidateDeviceName(t *testing.T) {
	if err := ValidateDeviceName("Test device"); err != nil {
		t.Fatalf("ValidateDeviceName(valid) error = %v", err)
	}
	if err := ValidateDeviceName(" "); err == nil {
		t.Fatal("ValidateDeviceName(blank) error = nil")
	}
	if err := ValidateDeviceName(
		strings.Repeat("x", MaxDeviceNameBytes+1),
	); err == nil {
		t.Fatal("ValidateDeviceName(oversized) error = nil")
	}
}